If African countries were cities. This is purely metaphorical and anecdotal: My rationale includes geography, music, reputation, industry, music, cities having similar sounding names to countries, and well thought out questions such as: "Which country would be full of DC niggas?"
New York - Egypt: The current and historical Empire. The richest city, the business, the money. It's also dramatically different than any other city.
L.A. - Nigeria: It's the new megacity in town, that's challenging the old guard. Paint a picture of the average American street anywhere in the country, and it will look more akin to LA than New York. Los Angeles is the top dogg of suburban city design, and Lagos is now the largest city of West African urbanity. Also, bet that any criminal worldwide, born after 1980, has picked up something from Gangsta rap. Gangsta rap is partly responsible for the proliferation of Crips and Bloods across all but a few US cities. Nigeria is the "gangsta rap" of notoriety in the criminal World, (except they in every city). Also Nollywood.
Washington D.C. - Ethiopia: The largest group of Black immigrants in DC originate from, (take a wild guess) - Ethiopia. Ethiopia is the capital of the African union, the center of ancient knowledge, as DC is the center of "ancient" US knowledge. Ethiopia has it's religious mystery history and Washington DC has its Masonic mystery history. Much as Politics are the highest position of power, Ethiopia is highest place, literally in all of Africa. It's also home to the African Union.
Chicago - The DRC: Say the "The Democratic Republic of the Congo" in a working-class Chicago accent. It's the literal center of the continent, with the 3rd most important megacity - Kinshasa. With the advent of cellphone technology, industry is the biggest industry.
The Bay - Morocco: Like NYC, SF is also an outlier in a sense. SF has a feel of a small West Coast counterpart to NYC. Morocco is the West Coast counterpart to Egypt. Points for it being right below Spain.
Philadelphia - Kenya: Kenya is the American dream of Africa. By American dream, I'm referring to nature, the west, the manifest destiny, buffalo, coyotes. How long did the image of safaris and the wild nature of Africa resonate with us? For a long time, it was the only thing we had to associate with the real Africa, Africa. When I was a kid, I remember seeing the Nairobi skyline as the proxy for the modern Africa. It was the Philadelphia of our Western idea of Africa. The first big city, the first "Place". I bet Philly got a lot of Kenyas too.
Atlanta - Ghana: Its become the Black spiritual home, so much, the price raise on the rent came along with it.
Houston - Algeria: - The Oil Giant. While Nigerians are known for doing business with oil (something LA used to do), the biggest reserves of oil are in that regions.
New Orleans - South Africa: It's where shit gets weird. Where everybody you meet look like they could be from 30 different places. The bottom of the Mississippi and the bottom of the continent.
Miami - Madagascar: We ain't from Africa, we from the 305. Florida might as well be another land mass separate from the US. Miami is the most tropical city in the US. Madagascar "out-tropicals" the rest of the continent.